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Message-ID: <20230511011213.59091-3-linyunsheng@huawei.com> Date: Thu, 11 May 2023 09:12:13 +0800 From: Yunsheng Lin <linyunsheng@...wei.com> To: <davem@...emloft.net>, <kuba@...nel.org>, <pabeni@...hat.com> CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Yunsheng Lin <linyunsheng@...wei.com>, Leon Romanovsky <leonro@...dia.com>, Michael Chan <michael.chan@...adcom.com>, Jesse Brandeburg <jesse.brandeburg@...el.com>, Simon Horman <simon.horman@...igine.com>, Rasesh Mody <rmody@...vell.com>, <GR-Linux-NIC-Dev@...vell.com>, Eric Dumazet <edumazet@...gle.com> Subject: [PATCH net-next v2 2/2] net: remove __skb_frag_set_page() The remaining users calling __skb_frag_set_page() with page being NULL seems to be doing defensive programming, as shinfo->nr_frags is already decremented, so remove them. Signed-off-by: Yunsheng Lin <linyunsheng@...wei.com> Reviewed-by: Leon Romanovsky <leonro@...dia.com> Reviewed-by: Michael Chan <michael.chan@...adcom.com> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@...el.com> Reviewed-by: Simon Horman <simon.horman@...igine.com> --- RFC: remove a local variable as pointed out by Simon. --- drivers/net/ethernet/broadcom/bnx2.c | 1 - drivers/net/ethernet/broadcom/bnxt/bnxt.c | 5 +---- include/linux/skbuff.h | 12 ------------ 3 files changed, 1 insertion(+), 17 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c index 466e1d62bcf6..0d917a9699c5 100644 --- a/drivers/net/ethernet/broadcom/bnx2.c +++ b/drivers/net/ethernet/broadcom/bnx2.c @@ -2955,7 +2955,6 @@ bnx2_reuse_rx_skb_pages(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, shinfo = skb_shinfo(skb); shinfo->nr_frags--; page = skb_frag_page(&shinfo->frags[shinfo->nr_frags]); - __skb_frag_set_page(&shinfo->frags[shinfo->nr_frags], NULL); cons_rx_pg->page = page; dev_kfree_skb(skb); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index efaff5018af8..f42e51bd3e42 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -1102,10 +1102,7 @@ static u32 __bnxt_rx_agg_pages(struct bnxt *bp, xdp_buff_set_frag_pfmemalloc(xdp); if (bnxt_alloc_rx_page(bp, rxr, prod, GFP_ATOMIC) != 0) { - unsigned int nr_frags; - - nr_frags = --shinfo->nr_frags; - __skb_frag_set_page(&shinfo->frags[nr_frags], NULL); + --shinfo->nr_frags; cons_rx_buf->page = page; /* Update prod since possibly some pages have been diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 30be21c7d05f..00e8c435fa1a 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -3491,18 +3491,6 @@ static inline void skb_frag_page_copy(skb_frag_t *fragto, fragto->bv_page = fragfrom->bv_page; } -/** - * __skb_frag_set_page - sets the page contained in a paged fragment - * @frag: the paged fragment - * @page: the page to set - * - * Sets the fragment @frag to contain @page. - */ -static inline void __skb_frag_set_page(skb_frag_t *frag, struct page *page) -{ - frag->bv_page = page; -} - bool skb_page_frag_refill(unsigned int sz, struct page_frag *pfrag, gfp_t prio); /** -- 2.33.0
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